Feed device for envelop-machines.



FEED

4lfmluummmmm PATENTED 1330.4, mos.- U. o. DAVIS. 4

DEVICE FOR BNVELOP MACHINES.

ArrLIoATIoN FILED DB0. so. 1902. 4 SHEETS-SHEET 1.

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INo. 837,452. E BATBNTBD DB0. 4, 1906. lU. o. DAVIS.

FEED DEVICE POR ENVELOP MACHINES.

APPLICATION IILEDEO. 30. 1902;

4 SHEETB-BHEBT 2.

messes:

M, MMQ% No. 837,452. Y PATENTED'DEG. 4, 1906.

U. o. DAVIS.

FEED DEIGB POR ENVELOP MACHINES. APPLIOATION FILED Dnc. ao. 1902.

4 SHEETS-SHEET 3.'

izmww. @@Miffm N0. 837,452. PATENTED DEG. 4, 1906*. U. C. DAVIS.

FEED DEVICE FOR ENVELOP MACHINES.

'APPLICATION FILED DBO. so. 1902.

4 SHEETS-833224.

UNITED STATES PATENT OFFICE.

ULYSSES DAVIS, OF PITTSFIELI), MASSACHUSETTS, ASSIGNOR TO EATON- HURLBUT PAPER COMPANY, OF PORTLAND, MAINE, A v

CORPORATION OF MAI NE.

Specification of Letters Patent,

Patented Dec. 4, 1906.

Application filed December 30, 1902. Serial No, 137,123

To a/ZZ wit/mt t may concern:

i 13e it known that I, ULYssEs C. DAVIS, a citizen oi the United States, and a resident of Pittsfield, in the county of Berkshire and l class, so that they may be run at a much higher speed than heretofore, thus increasing the capacity 3 and a further object is to simplify the construction of such machines and reduce the number of parts that constitute the machine as a whole and a further object is to improve the quality of the work turned out by the machines.

A form of machine in the use of which the above objects may be attained is illustrated in the accompanying drawings,.in which- Figure 1 is a view in iront elevation of a portion of an envelop-machine'embodying my invention with. parts broken away to show construction. Fig. 2 is a top or plan view of a portin of an envelop-machine embodying my invention. Fig. 3 is adetail top or plan view showing the carrier. Fi 4 is a detail view, on enlarged scale, showlng the elevator-operating mechanism. Fig. 5 'is a detail view, on enlarged scale, showing the trip of the elevator mechanism. Fig. 6 isa detail face view, on enlarged scale, of the ratchet-clutch. Fig. 7 is a detail view, in side elevation, of the plunger and its mount. Fig. 8 is adetail view, on enlarged scale, showing the connection between the plungerlever and its operating-cam. Fig. 9 is a detail view, on enlarged scale, showing the construction of the connecting-rod between the ratchet-operating lever' and the picker-slide lever, the lower end of the rod being broken away. Fig. 10 is a view in central longitudinal section through said rod. detail side View of the clutchcollar, showing the method of securing the clutch thereto.

. My improvement relates more especially to lthe devices for delivering the envelop-blanks to the mechanism for gummingfolding, and sticking the blanks, thus producing an envelop,

Fig. 1l is a these improvements having been applied to a machine of well-known construction, and only so much of the machine as is required to clearly illustrate my invention has been illustratedin the drawings, the omitted parts of the machine being well understood by those skilled in the construction and operation of machines of this class.

In the accompanying drawings the numeral 1 indicates the legs or standards, 2 a table supported on the standards, `and 3 a strut for securing-the rigidity of the frame composed of the standards and table. A cam-shaft 4 is mounted in the standards near the lower part thereof, and this cam-shaftmay be driven from any suitable source of power, as by a belt passing over pulleys secured t0 the shaft, the belt and pulleys not being shown. The standards and table may be constructed of any suitable material, as iron cast to shape.

A plate 5 is mounted on posts 6, rising from the table 2, and on this late a gumming mechanism is supported, tliiis consisting of a box 7 for the reception of mucilage or like gum, in which a distributing-roll 8 is mounted and turned, as by means of a belt passing over a pulley 9, secured to the shaft 10, the latter being secured to this distributing-roll, alsoa gum-roll l1, mounted in bearings 12, supported on the arms 13, secured to the rock-shaft 14. This rock-shaft is mounted in bearings on a yoke 15, located on the table 2, this shaft being rocked as by means of a rod 16 in engagement with a cam on the camshaft, the cam and greater portion of the rod not being shown.

A picker-slide 17 is mounted in the yoke 15 and has on its lower end pickers 18, adaptedto pass through openings in the plate 5.'

vloo

rier ismounted to have a reciprocating slid ing movement. This carrier consists of the side parts 24, the forward ends of which bear fingers 25, adapted to slide under an envelop- 5 blank and to retain it, the blankbeing heldunder projections at the back of the iingers and between the back edge of the fingers and the edge of the -holders 26. The carrier is reciprocated, as by means of a carrier-lver 27,

1o rigidlysehcpured to a rock-shaft 28, supported on the fraieofthe machine and actuated, as

by means of an arm 29, extending to the camshaft on the machine and connected witha cam thereon. 'As the rock-shaft is given a I5 'reciprocating turning movement the y upper end of the lever is carried forward and backward', thus reciprocating the carrier in a manner common to machines of this class..

' .I An envelop-opening 30 is formed between 2o the carrier-supports 22 and extends down through the table 2'. Folders 31 are arranged about this opening, the latter being.

of rectangular form, and a folder being lo-A cated at each of the four sides of the opening.

l Folder-shafts 32 are suitably supported in bearings secured to the under side'of the table 2 these shafts being arranged in the form of a rectangle and having a rocking motion imparted thereto, as by means of a rod 33,

3o passing downward and operated by cams 34 on the cam-shaft. i

A bottom plunger 85 is mounted on a rod 36, having a reciprocatingl movement in a bearing on-the strut 3. This rod is recipro- 3-5 cated as byineans of a cam 37 on 'the camshaft. The' plunger' is of corresponding shape and size as that ofthe envelop-opening 30 through the table, the plunger being adapted to fit quite closely Within this open.-

y 40 ing at certain times, but having a free movement therein. y

All of the parts above described form no part of my invention, eXcep't, possibly, in combination, said parts operating, however, in connection withthe mechanism forming my invention Yand hereinafter specifically described. For this reason a brief description only has been given of the above-described mechanism; but its operation and construc- 5o tion will be readily understood by those skilled in the art from the brief description in connection with the drawings filed herewith. An elevator 38 is arranged to hold a pile of envelop-blanks 39. This elevator is sup- 5 5 ported on a slide 40, which'is of dovetailed shape and has a sliding movement in grooves in the bracket 41. This bracketl is secured to the under side of the table 2. Feed mechanism for the elevator includes a lift- 6o ing-shaft 42, which 1s mounted inthe bracket 41, and this shaft supports a ratchet-wheel 43, a sprocket-wheel 44, and a hand-wheel 45. The ratchet-wheel 43 is secured to`the shaft, as b a key or the like, as is also the -hand-whee 45; but the sprocket-Wheel 44 is ated upon b v the pickers.

to the arm and engages the teeth on the 7o ratchet-wheel 43. A chain 49 is .secured at one end to the sp1ocketwheel 44 and at the other end to a lug 50 on the elevator-slide 40.

'The lifting-shaftA 42 is formed with a central opening for a portion of its length, as

shown in Fig. 4 of the drawings. A slot 51 is formed through the shaft, and ablutch 52 eX- tends through and has a movement lengthwise of the slot 51. This clutch is provided with teeth on its face adapted to engage the teeth 53.011 the hub of the sprocket-Wheel44, the engagement of the teeth on the several parts locking together. the shaft and the sprocket-wheel and causing the 'same'to rotate simultaneously. The clutch`52- is se- 85 cured to a collar 54, mounted and having a sliding movement on the lifting-shaft 42.. f A groove is formed in the face of this collar 54, extending, preferably, across the face, as shown in Fig. 6, and a clutch part 52 is securedwithin this groove. A clutch-rod 55 is secured at one end to the clutchf52', this rod being located in the central opening inthe shaft. A spring 56 is also located in the central opening in the shaft and presses with fone end against a shoulder on the rod, vthe opposite end of the spring resting against a shoul- .der in the central opening ofthe shaft.

A tri fleve'r 57 is pivoted to the bracket' 41, one en of this lever being located in the path loo of movement of a trip-pin 58, located on the slide 40, and the other arm of the lever is lo-v cated in position to be interposedfbehind the collar 54 and vifold the clutch in engagement with the sprocket 44. l l

The connecting-rod 47 has a slot a., in which a guide-pin b from the picker-slide lever 19 is located. A lip c is formed on the rod 47, and this lip bears a stop d.' This stop ir. the form; shown consists of a screw threaded into the lip c and having a set-nut e for holding it in place. By means of this stop the point-at` which the connecting-rod- 47 will'be struck by the picker-slide lever 19 vis determined, `and the amount of longitudinallmovement given vto the connecting-rod'may bethus varied,V

the pin b fitting loosgly ingthe slot a, so that` the picker-slide lever 19 may have a' certain movement independent of the connectingrod 47. v The blanks operated upon by 'a machine of the class herein described usually have that part of the blank which is to form' the lflap of the completedenvelop supplied 4with gum, and the edge of the pile containing' this portion ,of the blankis therefore y somewhat thicker than the opposite edge which `oper- The thickness' of the flap portion of the blank, las also the blank itself, may vary in thesucceeding piles 13o placed upon the elevator, and in order to compensate for this difference in thickness and allow the elevator the proper amount of feed in each instance the loose connection and adjustment of the rod 47 with the picker slide lever 19 is provided. This construction affords means whereby the extent of throw of `the lever may be increased or decreased to cause a faster or slower feed that may be required to present the envelop to the pickers at the proper rate.

A plunger-support 59 is mounted on the top of the table 2, the base being secured near one side of the table. The support extends upward and toward the center of the table, terminating in a head 60, located over the envelop-opening 39 through the table. Aplunger-slide 61 is located and has a reciprocating movement in the head 60, a plunger 62 being secured to the lower end of the slide. A link 63 connects the upper end of the slide with a plunger-lever 64, that is pivoted in an opening in the support 59. of this lever is secured a connecting-rod 65, the lower end being in engagement with a cani 66, located on the cam-sliaft and by means of which the rod, and consequently7 the plunger, is operated.

The connecting-rod has a yielding connection with the plunger-lever 64. This is obtained by mea-ns of a socket-piece 67, which is pivoted to the plunger-lever 64v and within which the end of the rod 65 extends, this end of the rod being preferably smaller in diameter than the inain part. This socketpiece 67 has slot 68,-in which a pin 69 is located, this pin projecting into or through theend of the connecting-rod 65.- A recessed nut 7() is secured to the enlarged portion of the rod 65, as by ii'ieans of inteiengaging screw-threads, and between this nut and the end of the socket-piece 67 a tension-spring 71 is located. 'A spring 72 is secured to thepin 69 and to the strut 3 and serves to hold the lever downward against its operating-cam. ln the operation of the device the blanks `are fed upward by the elevator feed mechanism, as hereinbefore described., to the ickers, which successively remove thefblan is from the pile,fcarrying them upward against the under surface of the late 5. This plate removes the blank from the pickers, which retreat upward, and at the same time the carrier mechanism is interposed underneath the blank and receives it and delivers it to the folding mechanism. The bottom plunger 35 and the plunger 62 are simultaneously moved toward each other, the latter engaging the envelop-blank and pressing it downward K To the opposite end.

operation of its cams, and the folders 5l operate to press the ila s down in proper position, that flap on which the gum has been deposited being located on top and securing all except the loose flap together. The plunger is then given another downward iiiovement to press the flaps firmly together. This o sllilled in the art. Y,

ln prior devices the connection between the plunger and its operating-cams has been such that the plunger is operated by gravity, and this filial downward movement of the plunger has been caused by a sudden drop in the cam, which allowed the plunger to fall quickly. This causes a hammering of the machine and prevents its operation at high speed, for the reason that the plunger cannot act quickly enough at high speed to press the flaps together before it is raised and, further, for the reason of the objectionable hammering, which racks the machine. By my iinprovenient it will be noted that this downl ward movement of the plunger is caused by a rise inthe cani, so that the moveinentis positive, and the machine can thereforebe run at any rate of speed. This means of operating theplunger also avoids the objectionable hammering present in prior inachines.

When the elevator has reached such height that the lastblank is removed therefrom, the

eration will be readily understood by those trip-lever 57 isengaged by the pin 58 and sprocket-wheel 44 is free to rotate on its shaft, and thev elevator thus descendsto its lowest point in position to receive anotherile of blanks. When the new pile of blanks lias been placed on the elevator, the pushbutton on the end of the clutch-.rod 55 is 'pushed inward, engagingl the clutch parts,

Vand-the trip-lever falls into position between the collar, holding the parts in engagement.

What I claim as my invention, and desire to lsecure by Letters Patent, is

l. In an envelop-inachine, in combination with carrier for delivering blanks toa folder, an elevator, a picker for removing blanks from the elevator and delivering them to said carrier, means for operating the picker, a lifting-shaft, `lifting means loosely mounted on the shaft and ositively connected with the elevator, a .c utch to secure the lifting means to rotate with the shaft, means for releasing the clutch, and means for operating the shaft.

2. In an envelop-machine, in combination with a carrier for delivering blanks to a folder', an elevator, apicker for removing blanks from the elevator and delivering th'em to Vsaid carrier, means for operating /the picker, a -lifting-shaft, liftin means loosely mounted on the shaft, a exlble member TOO influence of the spring 56, so that the positively connecting the elevator' and lifting means, a clutch for securmg the lifting means to rotatewith the shaftmeans for operating the clutch, and means for operating the shaft.

3. In an envelop-machine, 1n combinatlon .with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and delivering them to said carrier, means for operating the picker, a liftin -shaft,lifting means supported -by the Ashaft and positively connected `with the elevator, feed mechanismsupported by the shaft, a clutch for securing the lifting means to rotate with the shaft, 4and means for operating the clutch.

4. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker for removing` blanks from the elevator and y\delivering them A for securing the lifting means to rotater with the shaft, and means for operating the clutch.

i witha carrier for delivering blanks to av 5. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and delivering them a reciprocating picker-slide supported above the elevator, a lever for operating the pickerslide, a lifting-shaft, feed mechanism supported by the shaft, operative connectionsr between said lever and shaft, a lifting device supported on the shaft and connected with the elevator, a clutch for securing the lifting means to rotatewith the shaft, and means for operating the clutch.

6. In an envelop-machine, in combination folder, an elevator, a picker for removing blanks from the elevatorand delivering them to said carrier, means fof operating the picker, a lifting-shaft, a lifting-wheel loosely mounted on the shaft and having a positive connect-ion with the elevator and bearing one member of a clutch,a clutch member secured to rotate withvthe shaft and to secure the lifting-wheel to rotate with the shaft, means for operating the clutch, and means for feed ing i the shaft.

7. In an envelop-machine, in combination with a carrier for -delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and delivering them to said carrier, means for operating the icker, a liftingshaft, a sprocket wheel oosely mounted on the shaft andA bearing a clutch member, a sprocket-chain connecting the elevator and shaft, a clutch part secured to rotate with but having lengthwise movement on the shaft, means for operating the clutch, and means for feeding the shaft. Y

8. In an envelop-1nachine, in combination with a carrier for delivering blanks to a folder, a picker for renn'iving blanks from an elevator and delivering them to said carrier, means for operating said picker, a bracket secured to the frame thereof, the elevator moimted to slide in said bracket, a liftingshaft mounted in the side parts of the bracket, a sprocket-wheel loosely mounted on the shaft and having a clutch member, a sprocketchain connecting said wheel and elevator, a clutch member secured to rotate with `but having lengthwise movement on the shaft, means for operating the clutch member, and means for feeding the shaft.

9. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and deliveringr them to said carrier,`means for operating the elevator, a lifting-shaft, lifting means loosely mounted on thel shaft, a fiexible connection between the lifting means and elevator,` a clutch part secured to rotatewith but having longitudinal movement on the shaft to secure the lifting device to the shaft, means for feeding the shaft, a trip located on the elevator, and a trip-lever to be interposed behind the clutch member and projecting into the path of movement of the trip. to said carrier, means for operating the picker,

10. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and delivering them to said carrier, means for operating the picker, a lifting-shaft operatively connected with the elevator, a feed mechanism operatively connected with said shaft, a lever for operating the feed mechanism, and a connecting-rod connecting said lever and the picker-operating means to have a limited movement independent of one of said parts.

11. In an envelop-machine, iny combinationwith a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator' and delivering them to said carrier, a lever for' operating, said means, a lifting-shaft operatively connected with the elevator, a feed device appurtenant to said shaft, and a connecting-rod extending between said shaft and said lever and having a limited movement independent of thelatter. 12. In an envelop-machine, in Acombination with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from theI elevator and delivering them to" said carrier, means for operating the picker, a lifting-shaft operatively connected rwith the elevator, feed mechanism appurtenant to said shaft, and a connecting-rod extending between the feed mechanism and IIO nect'ed to have av limited movement independent of the latter.

13. In. an envelop-machine, in combination with a carrier 'for delivering blanks to a folder, an elevator, a picker for .removing blanks from the elevator and delivering them to said carrier, means for operating the picker, lifting-shaft operatively connected with the elevator, feed mechanism appurtenant to said shaft, a lever for operating the feed mechanism, and a rod connecting said lever and Ipicker-operating means and adjustabl f connected with the latter to have a limite movement independent thereof. l

14. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker for removing blanks from the elevator and delivering them to said carrier, a lever for operating the picker, a shaft operatively connected with the elevator, feed mechanism appurtenant to said shaft,e a lever for operating the feed mechanism, a connecting-rod between said lever and the picker-operating lever and having a slot, a pin projecting through said slot into the picker-operating lever, and a stop mounted on the rod to engage the lever.

15. In an envelop-machine, in combination With a carrier for deliverin blanks to a folder, an elevator, a picker or removing blanks from the elevator'and delivering them to said carrier, a lever for operating the picker, a shaft operatively connected with the elevator, feed mechanism a purtenant to the shaft, a lever for operating t e feed mechanism, a connecting-rod extending between said lever and picker-operating lever and having a slot, a in projecting' through the slot into the pic er-operating lever,- and a sto located in a lip on the connecting-rod an( underlying the picker-operating lever.'

16. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, an elevator, a picker-slide located over the elevator for delivering blanks there. from to said carrier, a lever for operating the slide, a lifting-shaft, lifting means supported through the slot into the ever, and a stop adjustably mounted in said lip.

17. In an envelop-machine, in combination with a carrier for delivering blanks to a folder, mechanism for removing blanks from an elevator and delivering them to said carrier, means for operating said mechanism, the elevator, a shaft operatively connected with the elevator, a member loosely mounted on the shaft and having a clutch part, a collar mounted to slide on the shaft and having a dovetailed groove .on one edge, a dovetailed-shaped guide projecting through slots in the shaft and secured in said groove and forming a clutch part, arid 'a rod projecting into the shaft and secured to said guide.

ULYSSES C. DAVIS. Witnesses:

ARTHUR B. JENKINS, CHARLES W. SEAGER.

SAO 

